Wear-resistant diamond micro-powder coating composition for intelligent bionic body joint, coating, bionic body joint, device as well as preparation method and application of wear-resistant diamond micro-powder coating composition

Abstract

The invention provides a wear-resistant diamond micro-powder coating composition for an intelligent bionic body joint, a coating, the bionic body joint, a device and a preparation method and application of the wear-resistant diamond micro-powder coating composition, and belongs to the technical field of wear-resistant coatings. The wear-resistant diamond micro-powder coating composition for the intelligent bionic body joint comprises a diamond micro-powder mixture, a resin matrix, a ceramic wear-resistant filler, a surface treating agent, a dispersing agent and an environment-friendly solvent, the diamond micro-powder mixture comprises modified diamond micro-powder and unmodified diamond micro-powder in a mass ratio of (20-40): (1-5); the preparation method of the modified diamond micro-powder comprises the following steps: S1, carrying out acid treatment and alkali treatment on unmodified diamond micro-powder to obtain activated diamond micro-powder; and S2, mixing the activated diamond micro-powder with a modifier, filtering, heating and drying to obtain the modified diamond micro-powder. The wear resistance of the coating can be improved, so that the service life of the intelligent bionic body joint is prolonged, and the stability is good.

Description

Technical Field

[0001] This invention provides a wear-resistant diamond micro powder coating composition, coating, bionic joint, device, preparation method and application for intelligent bionic joints, belonging to the field of wear-resistant coating technology. Background Technology

[0002] As a core component of bionic robots, medical prostheses, and precision transmission devices, intelligent bionic joints are prone to surface wear under high-frequency reciprocating motion and complex load conditions, directly affecting the joint's motion accuracy, stability, and service life. Traditional metal and ceramic matrix materials have limited wear resistance, and single resin coatings suffer from insufficient hardness and a high coefficient of friction, making it difficult to meet the requirements for long-term reliable use. Therefore, developing a wear-resistant coating for joint surfaces that combines high hardness, low friction, and excellent wear resistance is of significant practical importance for improving the overall performance of intelligent bionic joints.

[0003] Chinese Patent CN117963908B discloses a modified diamond micropowder, its preparation method, and its application. The preparation method of the modified diamond micropowder includes the following steps: hydroxylating diamond micropowder to obtain surface-hydroxylated diamond micropowder; and then dissolving the surface-hydroxylated diamond micropowder in a mixed solution of a silane coupling agent and an organic solvent at a frequency of 25 kHz-40 kHz and an intensity of 1 W / cm². 2 -3W / cm 2 Pre-treated diamond powder was obtained by pre-treatment under ultrasonic conditions; the pre-treated diamond powder was then subjected to vacuum heat treatment to obtain modified diamond powder.

[0004] However, when this modified diamond micro powder is used in wear-resistant diamond micro powder coating compositions, its wear resistance is poor.

[0005] Chinese patent CN103374286A discloses a diamond composite high wear-resistant coating, comprising two components, A and B. Component A, by mass percentage, consists of: 50.0-80.0% modified epoxy resin as the matrix resin, 18.0-50.0% diamond powder, 4.0-20.0% ceramic powder, 1.0-5.0% titanium dioxide powder, 1.0-20.0% environmentally friendly mixed solvent, and 0.5-4.0% other additives. Component B consists of: 25-55% curing agent, 0.8-8.0% other additives, 2.5-5.0% plasticizer, and 20-50% environmentally friendly mixed solvent. When using the coating, component A is mixed with… Component B is prepared in a mass ratio of A:B = 7:1-4:1; the matrix resin is epoxy resin, the diamond powder is synthetic diamond produced in Henan, and powder particles of different sizes are mixed in a certain proportion; the titanium dioxide is nano-sized powder, the ceramic powder is alumina ceramic, the environmentally friendly mixed solvent is a mixture of propylene glycol methyl ether and propylene glycol methyl ether acetate, wherein the mass ratio of the two is 3:1-1:1; the curing agent is a phenolic amine curing agent; and the other additives are one or more of dispersants, plasticizers, processing aids, and antioxidants. However, the wear-resistant coating of this invention has poor wear resistance and poor stability. Summary of the Invention

[0006] The purpose of this invention is to provide:

[0007] A wear-resistant diamond micron powder coating composition, coating, bionic joint, device, preparation method and application of the intelligent bionic joint, and related technologies are disclosed to improve the wear resistance of the coating and extend the service life of the intelligent bionic joint.

[0008] In a first aspect, the present invention provides: a wear-resistant diamond micro powder coating composition for intelligent bionic joints, comprising: a diamond micro powder mixture, a resin matrix, a ceramic wear-resistant filler, a surface treatment agent, a dispersant, and an environmentally friendly solvent; The diamond micro powder mixture comprises modified diamond micro powder and unmodified diamond micro powder in a mass ratio of (20-40):(1-5); The method for preparing the modified diamond micro powder is as follows: S1. Unmodified diamond micro powder is first acid-treated and then alkali-treated to obtain activated diamond micro powder; S2. The activated diamond micro powder is mixed with the modifier, filtered, heated and dried to obtain modified diamond micro powder.

[0009] Furthermore, the diamond micro powder mixture has a particle size of 100nm-10μm and a purity of ≥98%.

[0010] Preferably, the particle size of the diamond micron powder mixture is within the range of 100 nm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm or any combination thereof.

[0011] Furthermore, the acid treatment is performed by heating in an acid solution at 40-100°C for 3-5 hours.

[0012] Preferably, the acid treatment is performed by heating in an acid solution at 90-100°C for 3-5 hours.

[0013] Furthermore, the acid is at least one of sulfuric acid, nitric acid, and hydrochloric acid.

[0014] Furthermore, the concentration of the acid solution is 20-40 wt%.

[0015] Further, the alkaline treatment is: heating in an alkaline solution at 40-100°C for 1-2 hours.

[0016] Preferably, the alkali treatment is performed by heating in an alkali solution at 90-100°C for 1-2 hours.

[0017] Further, the alkali is at least one of sodium hydroxide and potassium hydroxide.

[0018] Furthermore, the concentration of the alkaline solution is 3-6 wt%.

[0019] Furthermore, the mass ratio of the activated diamond micro powder to the modifier is (5-10):(0.5-2).

[0020] Furthermore, the heating is performed at 100-120℃ for 4-6 hours.

[0021] Furthermore, the modifier is a silane coupling agent.

[0022] Preferably, the silane coupling agent includes at least one of aminosilane coupling agents, epoxysilane coupling agents, methacryloxysilane coupling agents, and mercaptosilane coupling agents.

[0023] Preferably, the mass ratio of the modified diamond powder to the unmodified diamond powder is at least one of (20-30):(1.5-5) or (30-40):(1-1.5).

[0024] Furthermore, the aminosilane coupling agent includes at least one of γ-aminopropyltriethoxysilane and N-β-aminoethyl-γ-aminopropyltrimethoxysilane.

[0025] Furthermore, the epoxy silane coupling agent includes: γ-glycidoxypropyltrimethoxysilane.

[0026] Furthermore, the methacryloyloxysilane coupling agent includes: γ-methacryloyloxypropyltrimethoxysilane.

[0027] Furthermore, the mercaptosilane coupling agent includes γ-mercaptopropyltriethoxysilane.

[0028] Furthermore, the mass ratio of the diamond micro powder mixture, the ceramic wear-resistant filler, and the surface treatment agent is (25-41):(8-11):(1.5-3).

[0029] Preferably, the mass ratio of the diamond micro powder mixture, the ceramic wear-resistant filler, and the surface treatment agent is at least one of (25-31.5):(8-10):(2-3) or (31.5-41):(10-11):(1.5-2).

[0030] Furthermore, the mass ratio of the resin matrix to the dispersant is (30-40):(1-2).

[0031] Preferably, the mass ratio of the resin matrix to the dispersant is at least one of (30-35):1.5 or (35-40):(1.5-2).

[0032] Further, the resin matrix is ​​at least one of epoxy resin, modified epoxy resin, silicone resin, fluorocarbon resin, and polyurethane resin.

[0033] Furthermore, the ceramic wear-resistant filler is ceramic powder with a particle size of 0.1-50μm.

[0034] Preferably, the particle size of the ceramic powder is 0.1μm, 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, 10μm, 11μm, 12μm, 13μm, 14μm, 15μm, 16μm, 17μm, 18μm, 19μm, 20μm, 21μm, 22μm, 23μm, 24μm, 25μm, or 26μm. 27μm, 28μm, 29μm, 30μm, 31μm, 32μm, 33μm, 34μm, 35μm, 36μm, 37μm, 38μm, 39μm, 40μm, 41μm, 42μm, 43μm, 44μm, 45μm, 46μm, 47μm, 48μm, 49μm, 50μm, or any range thereof.

[0035] Furthermore, the surface treatment agent is at least one of aluminum oxide, titanium oxide, molybdenum oxide, and zinc oxide.

[0036] Further, the dispersant is at least one of the following: sodium oleate, pyridinium salt, polymaleic anhydride, sodium pyrophosphate, anhydrous sodium metasilicate, polyacrylamide sulfonate, sodium dodecyl sulfate, and sodium dodecylbenzene sulfonate.

[0037] Furthermore, the environmentally friendly solvent is at least one of ethanol, dipropylene glycol methyl ether, propylene glycol methyl ether, and propylene glycol methyl ether acetate.

[0038] Furthermore, the wear-resistant diamond micro powder coating composition for the intelligent bionic joint comprises, by weight percentage: 25%-41% diamond micro powder mixture, 30%-40% resin matrix, 8%-11% ceramic wear-resistant filler, 1.5%-3% surface treatment agent, 1%-2% dispersant, and 15%-22% environmentally friendly solvent.

[0039] Furthermore, the diamond micro powder mixture has a particle size of 100nm-10μm and a purity of ≥98%.

[0040] Preferably, the particle size of the diamond micron powder mixture is within the range of 100 nm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm or any combination thereof.

[0041] Furthermore, the particle size of the surface treatment agent is 100nm-50μm.

[0042] Secondly, the present invention provides a method for preparing a wear-resistant diamond micro-powder coating composition for intelligent bionic joints, comprising the following steps: (1) Mix unmodified diamond powder and modified diamond powder evenly to obtain a diamond powder mixture; (2) Mix the resin matrix, environmentally friendly solvent, surface treatment agent and dispersant evenly to obtain a mixed solution; (3) Add diamond micro powder mixture and ceramic wear-resistant filler, mix evenly, and mature to obtain the final product.

[0043] Furthermore, the ripening process involves heating at 50-70°C for 20-40 minutes.

[0044] Thirdly, the present invention provides: a coating comprising the above-mentioned wear-resistant diamond micron powder coating composition for intelligent bionic joints.

[0045] Fourthly, the present invention provides: a bionic joint comprising the above-mentioned coating.

[0046] Fifthly, the present invention provides: a device comprising the above-described bionic joint.

[0047] Sixthly, the present invention provides the application of the above-mentioned wear-resistant diamond micron powder coating composition for intelligent bionic joints in the preparation of wear-resistant protective products.

[0048] The beneficial effects of this invention are as follows: This invention uses a mixture of diamond micropowder as the core wear-resistant phase, combined with ceramic wear-resistant fillers and a resin matrix. The diamond micropowder is a blend of modified and unmodified materials, utilizing the inherent properties of diamond's high hardness, low coefficient of friction, and high wear resistance. Furthermore, acid and alkali activation treatments enhance the surface activity of the diamond micropowder, and modification with a silane coupling agent improves its interfacial compatibility and bonding with the resin matrix. This results in uniform dispersion of the diamond micropowder in the coating, preventing agglomeration and ensuring strong interfacial bonding. During joint friction, the hard diamond micropowder and ceramic wear-resistant fillers jointly bear the load and resist abrasive wear and contact fatigue, while the resin matrix effectively transmits stress and buffers impacts. The overall structure forms a uniformly reinforced hard wear-resistant phase, stable interfacial bonding, and low friction loss, thus significantly improving the product's wear resistance. Detailed Implementation

[0049] The following non-limiting embodiments are intended to enable those skilled in the art to gain a more comprehensive understanding of the present invention, but do not limit the invention in any way. The following content is merely an exemplary description of the scope of protection claimed by the present invention, and those skilled in the art can make various changes and modifications to the present invention based on the disclosed content, and such changes should also fall within the scope of protection claimed by the present invention.

[0050] The present invention will be further described below by way of specific embodiments. Unless otherwise specified, all instruments, devices, equipment, reagents, products, etc., used in the embodiments of the present invention are obtained through conventional commercial means.

[0051] The epoxy resin described in this invention can be bisphenol A type epoxy resin, bisphenol F type epoxy resin, polyphenol type glycidyl ether epoxy resin, or glycidyl ester type epoxy resin. The embodiment of this invention uses bisphenol A type epoxy resin with an epoxy equivalent of 175-180 g / mol. The organosilicon resin described in this invention can be: methyl silicone resin, phenyl silicone resin, fluorosilicone resin, polyester silicone resin, or phenolic silicone resin. In this embodiment of the invention, methyl phenyl silicone resin is used, with a solid content of 50±1%.

[0052] The fluorocarbon resin described in this invention can be PTFE (polytetrafluoroethylene), PVDF (polyvinylidene fluoride), or FEVE (a copolymer of fluoroolefins and alkyl vinyl ethers or esters). In this embodiment of the invention, FEVE is used, with a fluorine content of 27%.

[0053] I. Examples and Comparative Examples 1. The material composition of Examples 1-3 of the present invention (a wear-resistant diamond micro powder coating composition for intelligent bionic joints) is shown in Table 1 and Table 2.

[0054] Table 1 (Unit: wt%)

[0055] Table 2

[0056] 2. The composition of the comparative example of the present invention is shown in Table 3.

[0057] Table 3 (Unit: wt%)

[0058] Note: The material types in Comparative Examples 1-6 are the same as in Example 2, but the table shows... The symbol '#' indicates that the surface treatment agent has been replaced with silica, '#' indicates that the dispersant has been replaced with polyethylene glycol, and ' / ' indicates that no dispersant has been added.

[0059] Comparative Example 7 The formulation of Comparative Example 7 is the same as that of Example 2, except that the modified diamond micro powder is prepared by the method of Example 1 (CN117963908B).

[0060] Comparative Example 8 The preparation was carried out using the preparation method described in the embodiment of patent CN103374286A.

[0061] 3. Preparation method (1) The preparation method of modified diamond micro powder is as follows: S1. Unmodified diamond micro powder (100nm) is heated in 35wt% sulfuric acid solution at 100℃ for 5h (material-to-liquid ratio 1g:100mL), filtered, rinsed with deionized water, and then added to 5wt% sodium hydroxide solution and heated at 100℃ for 2h (material-to-liquid ratio 1g:100mL), filtered, and rinsed with deionized water to obtain activated diamond micro powder.

[0062] S2. Dissolve the modifier in ethanol to prepare a 3wt% solution, and disperse 10g of activated diamond micro powder in 30mL of the solution. Sonicate and stir for 30min, filter out the solvent to obtain pretreated diamond micro powder; heat the pretreated diamond micro powder at 120℃ for 6h, dry and sieve to obtain modified diamond micro powder (100nm).

[0063] The modifier in Example 1 was γ-aminopropyltriethoxysilane; the modifier in Example 2 was γ-methacryloyloxypropyltrimethoxysilane; and the modifier in Example 3 was γ-mercaptopropyltriethoxysilane.

[0064] The modifiers used in Comparative Examples 1-6 are the same as those in Example 2.

[0065] (2) The preparation methods of Examples 1-3 and Comparative Examples 1-7 are as follows: S1. Stir and mix the raw materials of the diamond micro powder mixture evenly to obtain the diamond micro powder mixture; S2. Mix the resin matrix, environmentally friendly solvent, surface treatment agent and dispersant evenly to obtain a mixed solution; S3. Add diamond micro powder mixture and ceramic wear-resistant filler to the mixed solution, mix evenly, and cure at 60 degrees Celsius for 30 minutes to obtain the final product.

[0066] (3) Comparative Example 8 was prepared using the preparation method of Example 1 in Patent CN103374286A.

[0067] (4) The materials in Comparative Example 9 are the same as those in Example 2, except that the preparation method of the modified diamond micro powder is different, including the following steps: S1. Unmodified diamond micro powder (100nm) is heated in a 5wt% sodium hydroxide solution at 100℃ for 2h, filtered, rinsed with deionized water, and then added to a 35wt% sulfuric acid solution and heated at 100℃ for 5h, filtered, and rinsed with deionized water to obtain activated diamond micro powder.

[0068] S2. Dissolve the modifier in butanol to prepare a 3wt% solution, and disperse 10g of activated diamond micro powder in 20mL of the solution. Sonicate and stir for 30min, filter out the solvent to obtain pretreated diamond micro powder; heat the pretreated diamond micro powder at 120℃ for 6h, and dry to obtain modified diamond micro powder.

[0069] The modifier for Comparative Example 9 was dodecyltrimethoxysilane (alkylsilane coupling agent).

[0070] II. Coatings Preparation method: In Example 1, a curing agent, polyetheramine D230, was added to the composition to obtain Application Example 1; in Example 2, Comparative Examples 1-7, and Comparative Example 9, a curing agent, dibutyltin dilaurate (DBTDL), was added to the compositions to obtain Application Example 2, Comparative Examples 1-7, and Comparative Example 9; in Example 3, a curing agent, HDI trimer curing agent, was added to the composition to obtain Application Example 3.

[0071] The amount of polyetheramine D230 added is 30% of the mass of epoxy resin.

[0072] The amount of DBTDL added is 0.5% of the mass of the silicone resin.

[0073] The amount of HDI trimer curing agent added is 25% of the mass of the fluorocarbon resin.

[0074] Curing conditions for coatings: Application Example 1: Heating (60℃) for 3 hours to cure.

[0075] Application Example 2 and Application Comparative Examples 1-8: Cured at room temperature (25°C) for 12 hours.

[0076] Application Example 3: Curing at room temperature (25℃) for 12 hours.

[0077] It should be noted that the present invention does not impose any restrictions on the curing conditions, as long as they can be completely cured, without affecting the technical effect of the present invention.

[0078] III. Examples of Results (1) Stability test Test samples: Application Examples 1-3 and Application Comparative Examples 1-9.

[0079] Storage stability was tested according to national standard GB / T 6753.3-1986: After the sample was placed in the can and the lid was tightly closed, the weight of the sample was weighed to an accuracy of 0.2g, and then placed in a constant temperature drying oven and stored under accelerated conditions at 50±2℃ for 30 days.

[0080] After the specified storage period, the sample is taken out of the constant temperature drying oven, placed at room temperature for 24 hours, and then weighed. The weight difference between the sample and the weight before storage should not exceed 1%. The container is tightly sealed, and the performance test results are reliable.

[0081] Experiment a. Scoring of crust formation, pressure, corrosion, and putrid odor: 10 = None; 8 = Very slight; 6 = Slight; 4 = Medium; 2 = More serious; 0 = Serious.

[0082] Experiment b. Assessment of the degree of settlement 10: Completely suspended. No change compared to the original state.

[0083] 8: There is a noticeable settling sensation and a small amount of sediment appears on the cutting tool. There is no significant resistance when pushing with the cutting tool's blade.

[0084] 6. There are obvious settling clumps. The weight of the spatula is enough to allow it to fall to the bottom of the container. There is some resistance when pushing it with the spatula blade. The clumps in the agglomerated part can be transferred to the spatula.

[0085] 4. The weight of the mixing blade should prevent it from falling to the bottom of the container. It is difficult to move the blade after it passes through the sample, and there is slight resistance when moving the blade along the edge of the container. However, it can easily remix the sample into a homogeneous state.

[0086] 2: When force is applied to penetrate the sample sedimentation layer, it is difficult to move the blade with the blade face, and there is significant resistance when moving the blade along the edge. However, the sample can be remixed into a homogeneous state.

[0087] 0: Forms very hard lumps. These lumps cannot be remixed into a uniform paint by hand within 3-5 minutes.

[0088] Experiment c. Evaluation of viscosity change value After the sample is thoroughly mixed and filtered, the viscosity is measured using a suitable viscometer specified for the product. The viscosity is then evaluated according to the following grades based on the percentage ratio of the stored viscosity to the original viscosity.

[0089] 10: Viscosity change value, not exceeding 5%; 8: Viscosity change value, not exceeding 15%; 6: Viscosity change value, not exceeding 25%; 4. Viscosity change value, not exceeding 35%; 2: Viscosity change value, not exceeding 45%; 0: Viscosity change value, greater than 45%.

[0090] The test results scores are shown in Table 4.

[0091] Table 4

[0092] (2) Abrasion resistance test In the following test examples, the thickness of the coating after curing was 2 μm.

[0093] Frictional mass loss was tested according to the national standard GB / T1768-2006.

[0094] Impact resistance was tested according to the national standard GB / T 1732-2020.

[0095] The hardness of the pencil was tested according to the national standard GB / T 6739-2022.

[0096] The test results scores are shown in Table 5.

[0097] Table 5

[0098] Comparative Examples 1-2 showed that altering the composition or dosage of the diamond micron powder mixture resulted in a decrease in its wear resistance.

[0099] Comparative Example 3 showed that changing the mass ratio of diamond micron powder mixture, ceramic wear-resistant filler, and surface treatment agent resulted in a decrease in its wear resistance.

[0100] Comparative Example 4 changed the mass ratio of resin matrix and dispersant, and its wear resistance decreased.

[0101] Comparative Examples 5 and 6, by changing the types of surface treatment agents and dispersants, showed a decrease in their wear resistance.

[0102] Comparative Example 7 changed the preparation method of the modified diamond micro powder, resulting in a decrease in its wear resistance.

[0103] Comparative Example 8 is an existing technology, and its wear resistance is poor.

[0104] Comparative Example 9 changed the preparation method and the type of modifier of the modified diamond micro powder, resulting in a decrease in its wear resistance.

[0105] In embodiments 1-3 of the present invention, through specific methods for preparing modified diamond micro powder, composition of the diamond micro powder mixture, and synergistic effects among the components, the resulting material exhibits low frictional mass loss, high impact resistance, high pencil hardness, and excellent wear resistance.

[0106] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A wear-resistant diamond micron powder coating composition for intelligent bionic joints, characterized in that, include: Diamond micro powder mixture, resin matrix, ceramic wear-resistant filler, surface treatment agent, dispersant and environmentally friendly solvent; The diamond micro powder mixture comprises modified diamond micro powder and unmodified diamond micro powder in a mass ratio of (20-40):(1-5); The method for preparing the modified diamond micro powder is as follows: S1. Unmodified diamond micro powder is first acid-treated and then alkali-treated to obtain activated diamond micro powder; S2. The activated diamond micro powder is mixed with the modifier, filtered, heated and dried to obtain modified diamond micro powder.

2. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The diamond micro powder mixture has a particle size of 100nm-10μm and a purity of ≥98%.

3. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The acid treatment is performed by heating in an acid solution at 40-100°C for 3-5 hours; the acid is at least one of sulfuric acid, nitric acid, and hydrochloric acid; and the concentration of the acid solution is 20-40 wt%.

4. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The alkaline treatment is performed by heating in an alkaline solution at 40-100°C for 1-2 hours; the alkaline is at least one of sodium hydroxide and potassium hydroxide; and the concentration of the alkaline solution is 3-6 wt%.

5. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The mass ratio of the activated diamond micropowder to the modifier is (5-10):(0.5-2); the modifier is a silane coupling agent.

6. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 5, characterized in that, The silane coupling agent includes at least one of aminosilane coupling agents, epoxysilane coupling agents, methacryloxysilane coupling agents, and mercaptosilane coupling agents.

7. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The heating process involves heating at 100-120℃ for 4-6 hours.

8. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The mass ratio of the diamond micro powder mixture, ceramic wear-resistant filler and surface treatment agent is (25-41):(8-11):(1.5-3).

9. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The mass ratio of the resin matrix to the dispersant is (30-40):(1-2).

10. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The resin matrix is ​​at least one of epoxy resin, modified epoxy resin, silicone resin, fluorocarbon resin, and polyurethane resin.

11. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The ceramic wear-resistant filler is ceramic powder with a particle size of 0.1-50μm.

12. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The surface treatment agent is at least one of aluminum oxide, titanium oxide, molybdenum oxide, and zinc oxide.

13. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The dispersant is at least one of the following: sodium oleate, pyridinium salt, polymaleic anhydride, sodium pyrophosphate, anhydrous sodium metasilicate, polyacrylamide sulfonate, sodium dodecyl sulfate, and sodium dodecylbenzene sulfonate.

14. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to claim 1, characterized in that, The environmentally friendly solvent is at least one of ethanol, dipropylene glycol methyl ether, propylene glycol methyl ether, and propylene glycol methyl ether acetate.

15. The wear-resistant diamond micron powder coating composition for intelligent bionic joints according to any one of claims 1-14, characterized in that, The wear-resistant diamond micro powder coating composition for intelligent bionic joints comprises, by weight percentage: 25%-41% diamond micro powder mixture, 30%-40% resin matrix, 8%-11% ceramic wear-resistant filler, 1.5%-3% surface treatment agent, 1%-2% dispersant, and 15%-22% environmentally friendly solvent.

16. A method for preparing the wear-resistant diamond micron powder coating composition for intelligent bionic joints according to any one of claims 1-15, characterized in that, Includes the following steps: (1) Mix unmodified diamond powder and modified diamond powder evenly to obtain a diamond powder mixture; (2) Mix the resin matrix, environmentally friendly solvent, surface treatment agent and dispersant evenly to obtain a mixed solution; (3) Add diamond micro powder mixture and ceramic wear-resistant filler, mix evenly, and mature to obtain the final product.

17. The preparation method according to claim 16, characterized in that, The ripening process involves heating at 50-70℃ for 20-40 minutes.

18. A coating, characterized in that, The intelligent bionic joint wear-resistant diamond micron powder coating composition according to any one of claims 1-15.

19. A bionic joint, characterized in that, Including the coating as described in claim 18.

20. An apparatus, characterized in that, Including the bionic joint as described in claim 19.

21. The use of the wear-resistant diamond micron powder coating composition for intelligent bionic joints according to any one of claims 1-15 in the preparation of wear-resistant protective products.

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